Corn-planter



(No Model.) 4 Sheets-Sheet 1. L. H. LARSON.

CORN PLANTER No. 605,608. Patented June-14,1898.

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4 Sheets-Sheet 2.

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Patented June 14,1898.

(No Mdel.) I 4 L.H.LA RSON. CORN PLANTER 4 Sheets-Sheet 3.

(No Model.)

L. H. LARSON.

CORN PLANTER. N0. 60 5,6 0 8.

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L.-'H. LARSON.

CORN PLANT BR.

o. 605,608. Patented J ne 14,1898.

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LARS H. LARSON, OF HARTLAND, MINNESOTA.

CORN-PLANTER.

SPECIFICATION formingpart of Letters Patent No. 605,608, dated June 14, 1898. Application filed August 31, 1897. Serialllo. 650,133. (llo model.)

useful Improvements in Corn-Planters; and- I do hereby declare the following to be a full,

clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same. This invention relates to corn-planters and it consists, essentia1ly, of devices for operating markers of a specific form of construction.

The invention further consists of the details of construction and arrangement of the several parts which will be more fully hereinafter described and claimed.

Y The object of the invention is to provide positively acting markers or check rows wherein the parts can be readily shifted to operate on either one side or the other by a simple and effective arrangement of the mechanism which is controlled by the driver without requiring dismounting from the machine.

In the accompanying drawings, Figure 1 is a rear view of a corn-planter embodying the invention; Fig; 2 is a cross sectional ,view on the line now, Fig. 4. Fig.3 is a cross-sectional view on the line y y, Fig. 4. Fig. 4 is a top plan viewof the planter broken away in part. Fig. 5 is a longitudinal vertical section on the line 2 2, Fig. 4. Fig. 6 is a section on the line w w, Fig. 4, showing one of the markers or checkrows',on an enlarged scale. Fig. 7 is a detail sectional view ofthe seedbox, a part of the slide, and one'of the boots. Fig. 8 is a top sectional view of one of the ,seedboxe s. Fig. 9 is a detailview of one of the gears. Fig. 10 is a detail view of a surrounding guard for one of the shifting levers.

Referring to the drawings, wherein similar numerals of reference are employed to indicate corresponding parts in the several views, the numeral 1 designates a frame of suitable dimension and having cross ,-.supports andv braces arranged atvarious points, ,Whichwill be hereinafter referred to, where necessary,;

and also provided with ground-wheels 2 on an elongated axle 3, extending entirely through the machine from end to end. Secured on the axle 3 inside of the ends of the framel are sprocket-wheels 4 oranalogous devices having inner clutch-rims 5, adapted to be engaged by adjustable clutch-sleeves 6, and surrounding the shaft are coiled springs 6, which tend to normally throw said sleeves into en-' gagement with the clutch-rims. The said clutch-sleeves 6 are movable on the axle 3 and have attached theretorods 7, which are connected at their inner ends to a turn-head 8 on the outer end of a counter-shaft 9, projecting through to the rear of the machine and supplied with an operating-handle or grip 10.

Through the medium of the rod 7 and the counter-shaft 9 the clutch-sleeves 6 are held out of engagement with the clutch-rims 5.

means the several parts are thrown into operation or disconnected when not in use. On the rear portion of the frame -1 are uprights 11, in which the. ends of a shaft 12 have bearing, said shaft being square in the main and rounded onlywhereengagedby parts loosely mounted thereon, which will now be set forth.

On the said shaft'are loosely mounted clutchvdisks 13 of any preferred form of construction, and integrally formed therewith are small sprocket-wheels or analogous devices 14.- The said sprocket-wheels 14 are engaged by belts 15, running from the sprocket-wheels 4, and on the square portions of the said shaft 12 are also adj ustably mounted clutchheads 16, to which are attached the ends of I project outwardly a less distance'than the teeth 25 and are engaged by a pinion 26, carried on the end of a turn-rod 27, having a handle 28 and which is movably mounted in a guide 29, supported by a standard 30. This pinion 26 is caused to engage the teeth 24 to primarily arrange one or the other of the markers, which will be hereinafter set forth, to properly position the same when starting to work with the machine. After this adjustment is secured the pinion 26 is drawn back and disengaged from the teeth 24.

In advance of the shaft 12 is an intermediate controlling-shaft 31, which through the interposition of mechanisms operated thereby actuates the slides in the seedboxes and lowers the markers. On the said shaft 31 is keyed a pinion 32, which meshes with the gear-teeth of the wheel 23. On the outer ends of the shaft 31 disks 33 are secured, and thereto are eccentrically attached pitmen 34, having their outer ends connected to the illner ends of crank-shafts 35, bearing in supports 36, extending upwardly from a part of the frame. The cranks of the shaft 35 are arranged in reverse planes, and to the outermost ends of each is attached a connecting rod or bar 37, projecting downwardly and movably attached to the upper portion of a follower 38, which has openings 39 extending through opposite sides thereof, in which are movably mounted posts 40, projecting upwardly from a marker 41. The said follower 38 has its opposite ends seated in guides 2, depending from opposite portions of the frame 1, at the end of the latter,and held rigid by braces 43, attached to the lower ends of the said guides and also to adjacent portions of the said frame. Surrounding the posts 40 are coiled springs 44, which bear against the followers 38 at their upper ends and on washers 45, held 011 the upper edges of the markers 41. Seedboxes 46 are located on the frame outside of the pitmen 34, and eoacting therewith is a continuous slide 47, and thereto is movably attached a pitman 48, having its opposite end eccentrically connected with the outer portion of a crank 49, keyed to a small counter-shaft 50, having on its opposite end a similar gear 51. Meshing with the gear 51 is a larger beveled gear 52, keyed to a shaft 53, which has 011 its opposite end a ratchetwheel 54. The shafts and 53 are supported by a suitable standard rising from aplatform 55. and engaging the ratchet wheel 54 is a pawl 56, having a keeper 57 thereon, which tends to hold the pawl in engagement with the ratchet-wheel, and at the rear the said keeper has a vertically-disposed operating-support 58, which is adapted to be engaged by an arm 59, mounted on the shaft 31. To the said support 58, at the lower portion thereof, is attached the front end of a retracting-rod 0O, seated in guides (31, and between the rearmost guide and the rear end of the said rod is a coiled spring 62.

Below the s'eedboxes 4b are boots 63, which communicate with runners G4, braced at their front ends by a cross-rod 65, connected to hangers 66. Also attached to the markers 41 are stay-rods 07, having their outer ends movably connected to pins 08, extending out- At the rear central portion of the frame wardly from hangers (59, depending from the front portion of the machine. To the front bar of the frame are also secured suitable clips 70 for the attachment of a pole, and on the platform is a line-holding support '71, consisting of an upwardly-extending arm with an angular bent looped end 72, through which the lines or driving-reins may be placed and conveniently held while manipulating the machine. The rear of the frame has trailers or coverers 7 3 attached thereto of any preferred form of construction.

The sprocket-wheels 4 and 14 may be replaced by grooved wheels engaged by a belt, and to accommodate this arrangement adj ustable belt-tighteners 74 are positioned on the inner portions of the ends of the frame and comprise small pulleys 75, carried byadjustable spindles 70. This change of driving mechanism will be readily understood by those skilled in the art.

In operation the marker 41 on either end is lowered to an engaging position with the ground by the turn-rod 27, the latter being adjusted to cause the pinion 26 to engage the gear-teeth 24 011 the gear 23. The shifting rod 17 is then operated to throw the proper clutch-head 16 in connection with the clutchdisk 13, and by this means the shaft 12 is revolve'd and rotates the gear 23. The teeth 25, which extend only partially around the gear 23, strike the pinion 32 and operate the shaft 31 and actuate the disks 33, which in turn operate the pitmen 34 and the crankshafts 35 to reciprocate in a vertical plane the markers 41. The yielding attachment of the said markers through the springs in engagement with the posts thereof prevent breakage of the said markers as they are brought into contact with the ground or in striking obstructions. In the operation of the shaft 31 the arm 59 thereof actuates the seed-slide 47 through the pitman 48, operated by the mechanism set forth, and the said slide and marker mechanism are so timed that when properlystarted, in connection with the check made by the planter, the corn will be dropped in the checks previously made from the opposite seedboxes.

It will be understoodthat the clutch-sleeves 6 will be primarily thrown into engagement with the clutch-rims'of the wheels 4, and when it is desired to stop the machine the said clutch sleeves are disconnected from the clutch rim and the several parts thereby caused to cease their movements. If the markers 41 should be down at the time the machine stops, they can be raised by the turnrod 27 and pinion 26 in a manner similar to the primary arrangement of the said markers. The gear-teeth 25, extending only partially around the gear 23, cause an intermittent operation of the shaft 35, which, however, is rapid enough to attain the desired result It is obviously apparent that many minor changes in'the details of construction and arrangement of the several parts mi ghtbe made d and substituted for those shown and described Without in the least departing from the nature for operating the said disks, another shaft operated by the aforesaid shaft and having disks on the ends thereof, crank-shafts'attached to said disks, and vertically-reci procatin g markers connected to and operated by the said crank-shafts, substantially as and for the pn rposes specified.

2. In a corn-planter, the combination of a controllingshaft provided with an arm, a pawl supported by a slide-rod, a, keeper engaging said pawl, a ratchet-Wheel, a seedslide, gearing in connection with said ratchet- Wheel and seed} slide, and seedboxes with which said slide coacts', substantially as and for the purposes specified.

3. In a corn-planter, the combination of a drive-shaft,another shaft in connection therewith having a gear thereon, a controllingshaft engaging said gear, crank-shafts connected to said controlling-shaft, verticallyreciprocating markers operated by the said crank-shafts, and an adj ustableturn-rod carrying a pinion adapted to engage the said gear, and to adjust the said markers, substantiallyas and for the purposes specified.

,4. In a corn-planter, the combination of a shaft having a gear thereon, means for operating said shaft, a controlling-shaft carrying the pinion adapted to mesh with said gear, and provided with an arm, crank-shafts connected to said controlling-shaft, verticallyreciprocating markers attached to and operated by said crank-shafts, a yielding pawl adapted to be engaged by the arm of the controlling-shaft, a ratchet-wheel and gearing actuated by the said yielding pawl, a

feed-slideconnected to the gearing actuated by the pawl, seedboxeswith which the said slide engages, and means for throwing the several parts in and out of gear, substantially as and for the purposes specified.

In testimony whereof I have signed this specification in the presence of two subscrib .ing witnesses.

L. H. LARSON. Witnesses:

JOHN ZINN, CHRIST THOFOON. 

